/*
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package math;

/**
 *
 * @author Jhonatan
 */
public class prog6 {

    /**
     * @param args the command line arguments
     */
    //regresa el valor del arco coseno
    public static void main(String[] args) {

        System.out.println("el arco coseno es:\n"+Math.acos(0.39));
    }


}
